S$6\mathrm{.}2.$The overall average on a process you are attempting to monitor is $50$ units. The process

population standard deviation is $1\mathrm{.}72.$ Determine the upper and lower control limits for a mean

chart, if you choose to use a sample size of $5.$

$1.$ Set z$=3$

$2.$ Now set z$=2$ How do the control limits change?

S$6\mathrm{.}3.$Thirty$-$five samples of size $7$ each were taken from a fertilizer$-$bag$-$filling machine at Panos

Kouvelis Lifelong Lawn Ltd$.$ The results were overall mean is $57\mathrm{.}75$

$1.$ Determine the upper and lower control limits of the Xbar chart, where sigma$=3.$

S$6\mathrm{.}4.$ Rosters Chicken advertises $$lite$$ chicken with $30\%$ fewer calories than standard chicken.

When the process for $$lite$$ chicken breast production is in control, the average chicken breast

contains $420$ calories, and the standard deviation in caloric content of the chicken breast

population is $25$ calories.

Rosters wants to design an Xbar$-$chart to monitor the caloric content of chicken breasts, where $25$

chicken breasts would be chosen at random to form each sample.

$1.$ What are the limits with three standard deviations from the target?